South African and related defence-force eras recorded on the roll. SAP, SAPS, and SWAPOL are tagged as Forces. Merchant navy and civilian war-dead are left blank. Foreign and Boer units are tagged when the regiment name is unambiguous (e.g. Australian Field Artillery → AUS).
British Army, Royal Navy, Royal Air Force, Royal Flying Corps, and British colonial African regiments administered as Imperial forces (King's African Rifles, Northern Rhodesia Regiment, Rhodesia Native Regiment, wartime Southern Rhodesian units before the Rhodesian Security Forces). Not used for South African or Bush War Rhodesian records.
Wikipedia| # | Last Name | First Name | Initials | Rank | Regiment | Unit | Date of Death |
|---|---|---|---|---|---|---|---|
| 19224 | O'connor | James | J | Private | Lincolnshire Yeomanry | 1917-04-15 | |
| 19228 | O'connor | Robert John | R J | Flight Sergeant | Royal Air Force Volunteer Reserve | 254 Squadron | 1943-11-23 |
| 19270 | O'farrell | Maurice | M | Driver | Army Service Corps | 1915-04-27 | |
| 19283 | O'hanlon | Richard | R | Corporal | Royal Irish Regiment | 6th Bn. | 1916-08-12 |
| 19383 | O'neil | Frederick | F | Second Lieutenant | Royal Dublin Fusiliers | 5th Bn. | 1916-11-13 |
| 19487 | O'shea | Harry Arthur | H A | Lieutenant | Royal Air Force | 97th Squadron | 1918-08-14 |
| 19173 | Oates | Joshua Laurence | J L | Sub-Lieutenant | Royal Naval Volunteer Reserve | 188th T.M. Bty. R.N. Div. | 1916-11-13 |
| 19175 | Oates | Reginald John Stafford | R J S | Rifleman | King's Royal Rifle Corps | 3rd Bn. | 1915-05-10 |
| 40990 | Oates | Thomas Herbert Beveridge | T H B | Lieutenant | Royal Navy | H.q. | 1941-12-08 |
| 19259 | Oehley | Charles Edward | C E | Lieutenant | Royal Naval Reserve | H.M.S. Fiona | 1941-04-18 |
| 19262 | Oelofse | Johannes Roelof Stephanus | J R S | Pilot Officer | Royal Air Force | 43 Squadron (RAF) | 1940-08-08 |
| 19263 | Oelofse | Louis Johannes Nel | L J N | Rifleman | King's Royal Rifle Corps | 1943-11-18 | |
| 19297 | Oldfield | Henry Hammersley | H H | Second Lieutenant | Royal Air Force | 1919-02-20 | |
| 19299 | Oldham | Gordon William | G W | Flying Officer | Royal Air Force Volunteer Reserve | 44 Squadron (RAF) | 1944-04-27 |
| 19300 | Oldham | Milton | M | Corporal | King's Royal Rifle Corps | 2nd Bn. | 1918-07-05 |
| 40485 | Oldman | Wilfred Southey Deare | W S D | Captain | Royal Berkshire Regiment | 8th Bn. | 1915-09-25 |
| 19329 | Oliver | Edgar Alexander | E A | Second Lieutenant | Royal Fusiliers | 23rd Bn. | 1916-07-27 |
| 19330 | Oliver | Egbert Conrad | E C | Lieutenant | Royal Naval Volunteer Reserve | Hood Bn. R.N. Div. | 1917-02-05 |
| 19374 | Olver | Robert Duncan | R D | Sergeant | Royal Air Force Volunteer Reserve | 44 Squadron (RAF) | 1942-05-09 |
| 19382 | Onasi | Yankonde | Y | Private | Northern Rhodesia Regiment | 1940-11-11 | |
| 19393 | Oosterberg | Leslie | L W | Stoker 1st Class | Royal Navy | H.M.S. Neptune | 1941-12-19 |
| 19436 | Ord | Leonard | L | Corporal | King's Royal Rifle Corps | 9th Bn. | 1916-08-24 |
| 19437 | Ord-MacKenzie | Douglas Allan | D A | Second Lieutenant | London Regiment (Queen Victoria's Rifles) | 9th Bn. | 1916-09-24 |
| 19444 | Orford | Stephen Mewburn | S M | Second Lieutenant | King's Royal Rifle Corps | 11th Bn. | 1916-06-25 |
| 19451 | Ormsby | Francis James | F J | Second Lieutenant | Royal Sussex Regiment | 14th Bn. | 1916-09-03 |
| 19452 | Ormsby | Horatio Nelson | H N | Lieutenant | Cameronians (Scottish Rifles) | 12th Bn. | 1915-06-02 |
| 19453 | Ormsby | Richard Gilbert | R G | Private | 1st King Edward's Horse | 1918-10-19 | |
| 19463 | Orr | Robert Watson | R W | Second Lieutenant | London Regiment (London Irish Rifles) | 18th Bn. | 1915-09-25 |
| 19464 | Orr | Thomas Clarence Field | T C F | Sergeant | Royal Air Force Volunteer Reserve | 15 Squadron (RAF) | 1942-09-16 |
| 19471 | Orton | Cecil Alfred | C A | Major | Royal Garrison Artillery | 1917-09-30 | |
| 19477 | Osborne | Gerard Glasson | G G | Pilot Officer | Royal Air Force | 266 Squadron | 1942-11-28 |
| 19480 | Osborne | Robert Lionel | R L | Second Lieutenant | Royal Fusiliers | 14th Bn. | 1916-07-07 |
| 19481 | Osborne | William Reginald | W R | Ordnance Lieutenant | Royal Navy | 1945-11-21 | |
| 19483 | Oscar | Mwilu | M | Private | Northern Rhodesia Regiment | 3rd Bn. | 1946-01-18 |
| 19495 | Ostan | Kazangaza | K | Private | Northern Rhodesia Regiment | 1st Bn. | 1946-10-12 |
| 19499 | Oswald | William Digby | W D | Lieutenant Colonel | 5th Dragoon Guards (Princess Charlotte of Wales's) | 1916-07-16 | |
| 19502 | Otter | Frank | F | Aircraftman 1st Class | Royal Air Force Volunteer Reserve | 237 Squadron | 1942-01-17 |
| 19503 | Ottley | Glendower George | G G | Major | Royal Fusiliers | 1916-09-03 | |
| 19517 | Oulton | Harry Charles | H C | Second Lieutenant | Leinster Regiment | 4th Bn. | 1917-04-12 |
| 19530 | Owen | Edgar | E | Sergeant | Royal Air Force Volunteer Reserve | 44 Squadron (RAF) | 1941-10-14 |
| 19537 | Owen | John Griffith | J G | Flight Lieutenant | Royal Air Force Volunteer Reserve | 1943-10-13 | |
| 19541 | Owen | Wessel Michael Smuts | W M S | Driver | East African Mechanical Transport Corps | 1916-08-06 | |
| 19544 | Owtram | Richard Michael | R M | Guardsman | Irish Guards | 3rd Bn. | 1945-02-15 |
| 19550 | Pabanga | Private | Rhodesia Native Regiment | 1917-03-20 | |||
| 19561 | Paddon | George William | G W | Sergeant | Royal Fusiliers | 23rd Bn. | 1917-02-17 |
| 19567 | Page | Cyril | C | Bombardier | Royal Garrison Artillery | 329th Siege Bty. | 1917-12-05 |
| 19568 | Page | Ernest | E | Lance Sergeant | Royal Inniskilling Fusiliers | 7th/8th Bn. | 1918-03-21 |
| 19569 | Page | Herbert | H | Sergeant | Rhodesia Regiment | 2nd Bn. | 1915-03-11 |
| 19579 | Paine | Charles William Stanley | C W S | Captain | Royal Marine Light Infantry | Benbow Bn. | 1915-07-17 |
| 19582 | Paison | Luputa | L | Private | Northern Rhodesia Regiment | 1943-07-14 |